I recently became acquainted with this wonderful website -- exploring, here and there, the instant opportunities open.
I was saddened to learn of your health difficulties -- but was immediately heartened to learn of your "return to duty."
As I have learned with my own web-based efforts, the vast majority of people love an honest, creative, carefully thought-out effort in their behalf -- but, strangely, do not always bother to let the hard worker know. We can be quite certain that the few who do comment, reflect many others who don't, for their own reasons.
Anyhow, I just wanted to raise my hand to tell you, in no uncertain terms, that you and your magnificent contributions are deeply appreciated.
By the way: I hope knee replacement is a viable option for you. To my many observations, the work has become so routinely successful, it's almost like a visit to the dentist. And, people love being able to dance again (smile). I hope such will prove so for you.